This 2-Piece Tool Set includes the 5-in-1 Heavy-Duty Multi-Nut Driver (Cat. No. 32801) and a Receptacle Tester (Cat. No. RT110). Reduce the number of individual nut drivers in your belt with this multi-nut driver featuring multiple sizes in 1 tool. The sizes are interchangeable ensuring you have the size you need when you need it. Color coded shaft ends make it easy to identify the size. Increase your productivity and lighten your load with this multi-nut driver. The Outlet Tester detects the most common wiring problems in standard receptacles. Conditions indicated: wiring correct, open ground, reverse electrical outlet, open hot, open neutral, hot/ground reversed. Conditions not indicated: quality of ground, multiple hot wires, combinations of defects, reversal of grounded and grounding conductors.